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Finding the Fourth Proportional to 124,459.45, 186,827.65 and 64,471.92

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Solution

The fourth proportional to 124,459.45, 186,827.65 and 64,471.92 is: 96,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,459.45 : 186,827.65 = 64,471.92 : x
  2. Step 2: Convert to fraction form
    124,459.45/186,827.65 = 64,471.92/x
  3. Step 3: Cross multiply
    124,459.45x = 186,827.65 × 64,471.92
  4. Step 4: Simplify right side
    124,459.45x = 12,045,136,980.61
  5. Step 5: Solve for x
    x = 12,045,136,980.61/124,459.45
  6. Step 6: Final answer
    x = 96,779.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.